THREE PHASE

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POLEMOUNT TRANSFORMERS

ERMCO three-phase pole/platform mounted transformers are designed and manufactured in compliance with all applicable IEEE standards. All transformers are oil filled, 65°C rise, and designed for usual service conditions per IEEE C57.12.00. Options include a round or rectangular tank.

Rectangular Pole Transformers

ERMCO’s Three Phase Pole Mounted Rectangular Tank is designed for service  where three phase power is needed, but space is limited. It provides a cleaner looking service with less installation cost than a bank of three single phase transformers. The rectangular tank is shorter than the traditional round tank transformers allowing more room for leasing under build space on the pole. The shorter tank is more stable against tipping over than the taller three phase pole mounted round tank. CSP is available to improve service reliability.

Standard Features:

  • Meets or exceeds current IEEE, NEMA Standards.
  • Five-legged core/coil design.
  • Wet process high voltage bushings.
  • Molded polymer low voltage bushings.
  • Tin plated bronze terminals suitable for copper or aluminum connection.
  • Two tank grounding provisions.
  • Lightning arrester mounting provisions.
  • ½-inch drain plug.
  • Automatic pressure relief device.
  • Mineral oil.
  • Mild steel tank and bolted cover.
  • Corrosion resistant powder coat finish ASA 70 gray.
  • Laser engraved nameplate.

 

Optional Features:

  • Stainless steel tank / cover.
  • Secondary voltage circuit breaker.
  • Primary voltage fusing.
  • Lightning arresters (primary & secondary voltage).
  • Switching (winding taps or dual voltage).
  • Wildlife protection.
  • Gauges and/or valves.
  • Customer specified decals or stencils.
  • Natural ester oil.
  • Various tank colors.

Round Pole Transformers

ERMCO’s Three Phase Pole Mounted Round Tank is designed for service in areas where three phase power is needed, but space is limited. It provides a cleaner looking service with lower installation cost than a bank of three single phase transformers. Triplex core/coil is the choice for serving electric motor loads especially with frequent motor starts. CSP is available to improve service reliability.

Standard Features

  • Meets or exceeds current IEEE, NEMA standards.
  • Triplex core/coil design.
  • Wet process high voltage bushings.
  • Molded polymer low voltage bushings.
  • Tin plated bronze terminals suitable for copper or aluminum connection.
  • Two tank grounding provisions.
  • Lightning arrester mounting provisions.
  • 1/2” drain plug.
  • Automatic pressure relief device.
  • Mineral oil.
  • Mild steel tank and bolted cover.
  • Corrosion resistant powder coat finish ASA 70 gray.
  • Laser engraved nameplate.

 

Optional Features

  • Stainless steel tank / cover / band.
  • Secondary voltage circuit breaker.
  • Primary voltage fusing.
  • Lighting arresters (primary & secondary voltage)
  • Switching (winding taps or dual voltage)
  • Wildlife protection
  • Gauges and/or valves
  • Customer specified decals or stencils
  • Natural ester oil
  • Various tank colors

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